Water-purifying apparatus.



No. -'772,678. I PATBNTED OCT. 18, 19 04.

A. SURGE, JR, .WATER PURI'FYING APPARATUS.

APPLICATION FILED APR. 26; 1901.

N0 MODEL.

il'l'l'l'mmmiii A Patented October 18, 1904. i

PATENT OFFICE.

ADOLPH SORGE, JR, or cHioAco, ILLINOIS.

-WATER- PURIFY ING APPARATUS.

SPECIFICATION forming part of Letters Patent N0..77 2,678, dated October18, 1904.

Application filed April 26, 1901- To all whom it may concern:

Be it known that I, ADoLPH SoReE, J r., a citizen of the United States,residing in Chicago, in the county of Cook, in the State of Illinois,have invented certain new and useful Improvements in Water-PurifyingApparatus, of which the following is a specification.

This invention relates to that class of puri-, fying apparatus in whichthe impurities that it is desired to be rid of are brought down orcollected by the chemical action of a solution of caustic soda or othersuitable reagent supplied for the purpose and are afterward removed fromthe chemically-treated water by filtration; and it relates moreparticularly to improvements in feed-water purifiers in which asaturated solution of the reagent is formed in a suitable tank fromwhich a discharge-pipe conducts it into the feed-water. In my priorapplication, Serial No. 85,919, filed Novem} ber 9, 1900, I have pointedout that in such apparatus a tendency exists for the formation of adeposit in the discharge-pipe which is liable in a comparatively shorttime to completely close or choke the pipe and stop the working of theapparatus, and I have shown and claimed in the aforesaid applicationboth generically and specifically means for avoiding this difficulty.

The object of the present invention is to provide a further improvementin means of accomplishing the same result; and to this end it consistsin the matters herein set forth, and particularly pointed out in theappended claim.

In the accompanying drawings, Figure 1 is a sectional elevation ofwater-purifyingapparatus provided with my improvements.

Fig. 2 is a top plan view thereof.

In said drawings, 1 designates a feed-water heater; 2 and 3, the steaminlet and exhaust pipes; 45, the water-outlet pipe leading from theheater to the boilers, (not herein illustrated,) and 5 the supply-pipewhich conducts the feed-water into the heater, a valve 6, controlled bya float in the heater, being provided to regulate the admission offeed-water in accordance with the rate at which it is drawn ofi? to theboilers.

A chemical-tank 7, to be filled with caustic SerialNo. 57,618. (No modemsoda or other desired reagent, is supplied with water from any suitablesource, conveniently through a connection 8, leading from thesupply-pipe 5. The water entering through this connection becomesimpregnated with the reagent and is .then discharged back into thefeed-water through a pipe 9, in which a sightfeed 10 is provided toenable the flow to be visually regulated as desired.

In practice it has been found that where caustic soda or other solidcompounds are employed as reagents in an apparatus of this character amore uniform chemical reaction can be counted upon if the flow of waterthrough the tank 7 is so regulated as to produce a saturated solution,which of course will always be of uniform strength. Such saturatedsolution, however, tends to produce a deposit in the pipe 9, leadingfrom the tank, so that it frequently happens that in a comparativelyshort time the resulting incrustation will completely close or chokesuch pipe and stop theworking of the apparatus. This difficultyIovercome in the present improvement by introducing an additional solventinto the discharge-pipe 9 at the point where the latter leaves the tank,so as to thereby reduce the density of the solution suflicientlytoprevent any deposit in the pipe. As herein shown, such solvent isprovided in an additional tank 11, from thelower portion of which avalve-outlet 12 leads into the pipe 9. This tank may be convenientlyfilled through a funnel 13, that discharges into the tank through avalve connection 14, and to enable the contents of the tank to bedischarged against any desired head the upper end of the tank is shownas connected by a valve-pipe 15 with any suitable source of pressure, afloating pisv small inlet-pipe, with the same general result of reducingthedensity of thesolution, and I00 outlet-pipe under pressureindependent of the pressure in the inlet-pipe to reduce the density I 5of the solution and prevent inerustation of the outlet-pipe,substantially as described.

In testimony that I claim the foregoing as my invention I aiiix mysignature, in presence of two subscribing Witnesses, this llth day of 20April, A. D. 1901.

A. SORGE, JR.

Witnesses:

HENRY W. CARTER, S. A. JoNEs.

